JP2003207245A - Cold air control device and method of refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cold air control device and a method for intensively cooling a weak cold part or a part for housing a new load in a refrigerator. <P>SOLUTION: This cold air control device comprises a picture image forming means for forming a picture image by imaging a load when housing the load by opening-closing of a door of the refrigerator, a control means for controlling so as to rotate a driving body driven by a correlation between the picture image after housing the load and the picture image before housing the load, and a delivery means for delivering cold air in the load direction by control of the control means. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator, and more particularly to a cool air controller for centrally cooling a weakly cooled portion or a portion where a new load is stored in the refrigerator.

[0002]

2. Description of the Related Art Generally, a refrigerator is used for freezing or refrigerating food and drink. Such a refrigerator is a device capable of refrigerating or refrigerating foods and drinks that easily perish in hot districts and fish whose freshness must be maintained, and compresses and condenses the refrigerant to remove heat from the surroundings by a refrigeration cycle through an evaporation process. Take away and cool the surroundings. Food and drink, fish, fruits, etc.
It is a household electric appliance that is indispensable in modern society because of the convenience that it is possible to refrigerate drinking water and the like at any time and, if necessary, to make ice for edible food at any time.

FIG. 10 is a perspective view showing the structure of a general refrigerator. Referring to FIG. 10, the refrigerator includes a main body 1
The partition wall 4 is divided into a freezer compartment 24 and a refrigerating compartment 26. A door (not shown) is installed on the front side to disconnect the freezing room 24 and the refrigerating room 26 from the outside air. On the other hand, in the refrigerator, the freezer 2
4 and a refrigeration cycle apparatus for performing compression, condensation and evaporation operations to form cold air necessary for cooling the refrigerating chamber 26. Further, in the refrigerator, a blower fan 12 for forcibly blowing the cool air produced by the refrigeration cycle to the freezing compartment 24 and the refrigerating compartment 26 is attached to the blower compartment 10 on the upper rear surface of the freezing compartment 24.

Further, a front cold air discharge port 20a for discharging cool air to each shelf 16 of the refrigerating chamber 26 has a fixed partition wall 18 between the freezing chamber 24 and the refrigerating chamber 26 which communicate with the blower chamber 10. Many are formed at the position. Further, a cold air suction port 22 for sucking ambient air is provided at a predetermined position in the freezer compartment.

In the refrigerator constructed as described above, the low-temperature low-pressure gaseous refrigerant is compressed to high-temperature high-pressure by the compressor, and the compressed high-temperature high-pressure gaseous refrigerant is cooled and condensed in the course of passing through the condenser. Converted to high pressure liquid. Then, the high-pressure liquid refrigerant passes through a capillary tube (not shown) and its temperature and pressure become low. Then, the evaporator transforms into a low-temperature low-pressure gas state and takes away heat from the surroundings. To cool the air. Further, the air cooled through the evaporator is
By operating the blower fan 12 located on one side of the evaporator to flow into the freezing compartment 24 and the refrigerating compartment 26 for circulation, the temperature inside the freezing compartment and the refrigerating compartment is lowered.

[0006] As described above, the refrigerator is equipped with a cold air distribution system in order to send the cool air formed around the evaporator to the storage spaces of the freezing and refrigerating compartments. Of course, such a cold air distribution system is constructed in various forms depending on the type of refrigerator. The cold air distribution system will be described with reference to FIGS. 10 and 11. The damper 20 is provided in the upper stage of the refrigerating chamber 26 and communicates with the blower chamber 10. A front cool air discharge port 20a and a lower cool air discharge port 20b are formed on one side of the damper 20.

Therefore, in the cold air distribution system configured as described above, the blower fan 1 provided in the blower chamber 10 cools the cool air formed around the evaporator and transferred to the blower chamber 10.
2 to disperse in the freezer compartment 24 and the damper 20. At this time, the cold air that has flowed into the freezer compartment 24 circulates inside the freezer compartment, then moves to the evaporator again through the cool air inlet 22b on the bottom surface of the freezer compartment, and the cold air that has flowed into the damper 20 is It is discharged into the refrigerating chamber 26 through the front cool air discharge port 20a on the side surface. The cool air discharged to the upper part of the refrigerating chamber through the front cool air discharge port 20a of the damper 20 moves downward through the space between the door 15 and the storage shelves 16 and is distributed to the storage space between the storage shelves 16. After flowing in, it finally flows into the cool air suction port 22 connected to the evaporator.

[0008]

However, according to the prior art as described above, since the cool air discharged from the upper damper is not well transmitted to the middle and lower parts of the refrigerating room far away from the damper 20, There is a problem that the cooling action is not effectively performed and the temperature distribution in the refrigerating compartment becomes non-uniform. There is also a problem in that the amount of cold air that is transmitted to the vicinity of the door 14 far from the upper damper is insufficient, and the food stored in the door basket is not cooled well.

On the other hand, in the conventional refrigerator configured as described above, the weight of each shelf 16 in the refrigerating compartment 26 in which a new load (for example, food) is stored and the refrigerating compartment 26 itself is sensed,
The surroundings of the refrigerating compartment 26 may be configured to discharge and block cool air into the refrigerating compartment 26, or a temperature sensor (not shown) attached to a specific portion of the refrigerating compartment 26 may detect the temperature of the refrigerating compartment 26 itself. The cold air is discharged and cut off in the entire refrigerating chamber according to the temperature level. However, when such a cool air control system is used, when the ambient temperature and weight of the refrigerating compartment are increased due to the new load as described above, in order to reduce the elevated ambient temperature of the refrigerating compartment, There is a problem in that cold air is discharged to the entire cold storage room, which increases power consumption of the refrigerator itself.

In the cooling control system for cooling the entire refrigerating compartment as described above, the new load stored is cooled while the ambient temperature of the entire refrigerating compartment is lowered. In addition, the cooling capacity of the refrigerator is significantly reduced. The present invention has been devised to solve the above problems, and an object thereof is to provide a device for controlling the cold air of a refrigerator. It is another object of the present invention to provide a device for centrally cooling a portion where a stored load is located.

[0011]

According to a preferred embodiment of the present invention for achieving the above object, when a load is stored by opening and closing a door of a refrigerator, the load is imaged to generate a video image. And a control means for controlling to rotate the driving body driven by the correlation between the video image after the load is stored and the video image before the load is stored, There is provided a cool air control device for a refrigerator including a discharge means for discharging cool air in the load direction under the control of the control means.

The cool air control device of the refrigerator may further include a sensing means for sensing opening / closing of the refrigerator door and sending a sensing signal to the controlling means. According to the cool air controller of the refrigerator, the correlation is a change in the position and size of the load in the space in which the load is stored. According to the cool air control device of the refrigerator, the video image generation means can image the space in which the load is stored each time the door of the refrigerator is closed.

According to the cool air control device of the refrigerator, the driving body has a spherical shape, and the discharge means penetrates the inside thereof to be attached to the inner wall surface of the refrigerator, and the inside of the driving body has a spherical shape. Can be inserted. According to the cool air control device of the refrigerator, the degree of rotation of the driving body may differ depending on the position and size of the load stored. According to the cool air control device of the refrigerator, the video image generating means may correspond to the driving body in a one-to-one manner and may be provided at predetermined positions.

According to another preferred embodiment of the invention,
When the load is stored by opening and closing the door of the refrigerator, the load is imaged to generate a video image, and there is a correlation between the video image after the load is stored and the video image before the load is stored. A cold air control method for a refrigerator is provided, which includes controlling a driving body to be driven to rotate according to the control means, and discharging the cool air toward the load under the control of the control means. According to the cold air control method of the refrigerator, the image may be generated each time the opening and closing of the refrigerator door is detected. According to the cold air control method of the refrigerator, the degree of rotation of the driving body may differ depending on the position and size of the load stored.

According to another preferred embodiment of the present invention, when the control unit transmits an image pickup command for opening and closing the door of the refrigerator to the video image generation unit, the load is generated by the video image generation unit in response to the image pickup command. Imaging the space to be housed, sending the generated video image to the control means, and controlling the control means to rotate the driving body according to the change of the video image to discharge the cool air. A method of controlling cold air in a refrigerator is provided. According to the refrigerator cooling air control method, the imaging command may be generated from the control unit based on a sensing signal sensed by opening and closing a door of the refrigerator. According to the cold air control method of the refrigerator, the change of the video image may be determined by the presence / absence of a load located in the space in which the load is stored.

According to another preferred embodiment of the present invention, an auxiliary duct connected to one side of a damper connected to the blower chamber and provided in a partition wall between the freezer compartment and the refrigerating compartment, and the auxiliary duct is fixed. A cool air injection nozzle that is provided for each section and discharges cool air, a temperature sensor that is arranged on one side of each door basket to detect the temperature, and a temperature change of the storage space of each door basket that is grasped through the temperature sensor. Accordingly, there is provided a cold air control device for a refrigerator including a controller that drives a drive motor so that the cold air injection nozzle rotates.

The cool air controller of the refrigerator may further include an auxiliary blower fan provided on one side of the damper so that the cool air is pressurized to the auxiliary duct side. According to the cool air control device of the refrigerator, the controller can control the rotation degree of each cool air injection nozzle to be different depending on the position of the storage space where the temperature change occurs.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a view showing a refrigerator according to a preferred embodiment of the present invention. Figure 2
FIG. 3 is a diagram showing a rotary member in which a cool air discharge port is formed in FIG. 1. Referring to FIGS. 1 and 2, the refrigerator includes a plurality of image devices 110 on an inner wall surface 127 of a storage space between the shelves 122 of the refrigerating compartment 120. Here, it is preferable that the video equipment 110 is a digital camera capable of capturing an image of a target object. Therefore, the target object may be captured by the video device 110 and input as a video image to a controller (not shown) provided in the refrigerator. Here, the controller is called a microcomputer, and optimizes the refrigerator by using signals input from various sensors and electronic devices of the refrigerator.

In addition, the video equipment 110 includes the shelves 122.
It is preferable that two inner wall surfaces 127 are provided for each storage space between them. In the refrigerator, the video equipment 11
A rotary member 112 corresponding to 0 is provided in a lower stage of the video device 110 with a certain distance from the video device 110. The rotating member 112 is attached to the lower stage of the video equipment 110 attached to the inner wall surface 127 of the refrigerating chamber 120, and has a spherical inner side so that the spherical driving body 116 can be inserted and rotated. A driver case 114 is provided. Here, the driving body 116 is inserted into the driving body case 114, and the driving body case 1 is controlled by the controller.
It comes to rotate in 14.

When a new load (for example, food) is stored in the refrigerating compartment 120, the rotating member 112 is capable of discharging cold air to the new load 118.
Is provided. Therefore, when a new load is stored in the refrigerating room 120, the driver is selected based on the correlation between the video images before the new load is stored by the video device 110 and after the new load is stored. After rotating in the direction of the new load, cool air can be discharged. Here, reference numerals 124 and 126 not described here
Indicate doors that can open and close the freezer compartment and the refrigerator compartment, respectively.

A method of controlling cold air by using the video equipment mounted on the inner wall surface of the refrigerator compartment of the refrigerator as described above will be described. 3 to 5 are views showing that cool air is discharged to the position of the load stored in the refrigerator according to the preferred embodiment of the present invention. First, before a load (food) is stored in the refrigerating room, a video image is formed by imaging the space in which the load 128 is stored by the video equipment 110. The video equipment operates by opening and closing the refrigerator to take an image. For example, when the user opens and closes the refrigerator before the load is stored, the video device is operated by opening and closing the refrigerator, and the space where the load is stored is imaged. At this time, the video image previously captured by the video equipment is input to the controller (FIG. 3).

When the user opens and closes the refrigerator to store the load in the refrigerator, the video equipment 110 is opened again.
Captures an image of the space in which the load is stored. That is, when the user opens the refrigerator door and stores the load in the space in which the load is stored in the refrigerator, and then closes the door of the refrigerator, the video device is activated by closing the refrigerator, Imaging is performed on the space in which the load is stored. Then, the captured video image is input to the controller (FIG. 4).

In the controller, the position and size of the load are grasped by comparing the video image before the load is stored with the video image after the load is stored. After the position and magnitude of the load are known, the controller controls the rotating member 1
After rotating the 12 driving bodies 116 in the direction of the load,
Cold air is discharged through the cold air discharge port 118 (FIG. 5). Of course, at this time, it is preferable that a motor (not shown) is provided between the controller and the driving body to rotate the driving body 116. Therefore, when the controller drives the motor, the motor causes the driving body to rotate in the direction of the load, and subsequently cool air is discharged through the cool air discharge port 118. As described above, a method of controlling cold air using the video equipment will be described in detail with reference to FIG.

FIG. 6 is a flow chart illustrating a method of controlling cold air in a refrigerator according to a preferred embodiment of the present invention. Referring to FIG. 6, it is determined whether the user has opened or closed the refrigerator door (step 211). Here, in order to detect the opening and closing of the refrigerator door, it is preferable that a sensor be provided on one side of the refrigerator door. Therefore, a detection signal is generated by opening and closing the refrigerator and is input to the controller, and the controller can check the opening / closing status of the refrigerator based on the number of input sensing signals. That is, when one of the detection sensors is input, the refrigerator is opened, and when two detection signals are input, the refrigerator is closed.

In the controller, based on the opening and closing of the refrigerator,
Control is performed so that the space in which the load is stored is imaged through the video equipment. That is, when two detection signals are input from the detection sensor, the controller determines that the refrigerator is closed and sends an imaging command to the video device. Then,
The video equipment captures an image of the space in which the load is stored according to the image capture command to generate a video image (step 21).
4). Here, the image is a three-dimensional image,
The position and size of the imaging target (eg, load) are displayed in pixel form.

If the refrigerator is opened and closed without the load being stored in the refrigerator, only a video image of the bottom of the space in which the load is stored is generated. On the contrary, when the refrigerator is opened and closed while the load is stored in the refrigerator, a video image of the load is generated. Therefore, by arbitrarily opening and closing the refrigerator, a video image before the load is stored is generated in advance and is input to the controller, and the load is stored by opening and closing the refrigerator to store the load. Later video image is generated,
Input to the controller.

In the controller, the position and size of the load are grasped by comparing the video image before the load is stored with the video image after the load is stored (step 2).
17). That is, in the controller, based on the video image before the load is stored in advance, how far from the reference position of the load is using the video image after the load is stored, and what is its size? Get information about how to rank. When the position and size of the load are known, the controller drives the motor to control the driving body to rotate according to the position and size of the load (step 220).

When the driver is aimed at the position and size of the load, cool air is discharged through a cool air discharge port formed at the center of the driver under the control of the controller ( Step 223). When the cold air control method according to the preferred embodiment of the present invention and the existing temperature sensor and weight of the object are used, the newly stored load can be cooled more intensively. In the preferred embodiment of the present invention described above, the method of discharging the cool air in the direction of the load when the load is stored in the refrigerating chamber has been described.

In the following, a method of controlling cold air in a door basket in which weak cooling often occurs and a load is frequently stored will be described. FIG. 7 is a view showing a refrigerator according to another preferred embodiment of the present invention. 8 and 9 are state diagrams showing an operation state in which cold air is discharged to a door basket in a refrigerator according to another preferred embodiment of the present invention. Referring to FIGS. 7 and 8, in the refrigerator, a blower chamber 130 is connected to a damper 138, and cool air is supplied to the damper 138 at an inlet through which cool air flows from the blower chamber 130 to the damper 138. Therefore, a blower fan 132 is provided.

Further, the refrigerator is provided with an auxiliary duct 142 through the partition wall 134 between the freezer compartment 133 and the refrigerating compartment 135. The auxiliary duct 142 is provided with a plurality of cool air injection nozzles 171 to 174 that are rotatable and discharge cool air at regular intervals. At this time, the cold air injection nozzles 171 to 174 can be rotated by a drive motor, and a drive motor (not shown) for this purpose drives the cold air injection nozzles 171 to 174.
It is provided so as to be connected to.

Further, the refrigerating compartment 135 is provided with temperature sensors 165 to 168 arranged in respective storage spaces formed between the door baskets 161 to 164 to detect the temperature. The temperature sensors 165 to 168 sense the temperature of each storage space and send the temperature to the controller, and cool air is discharged according to the sensed temperature. The auxiliary duct 142 includes a horizontal portion 144 extending horizontally from the damper 138 toward the door 150 for a certain section, and a vertical portion 146 vertically extending downward from the tip of the horizontal portion 144.

The cold air injection nozzles 171 to 174 are
The auxiliary ducts 142 are arranged in the vertical portion 146 at regular intervals, and are basically formed so as to project toward the storage space of the door baskets 161 to 164. here,
The cold air injection nozzles 171 to 174 are preferably provided so as to correspond to the storage space. That is, when there are four storage spaces, four cold air injection nozzles are provided so as to correspond to the storage spaces.
Further, the damper 138 is provided with an auxiliary blower fan 154 for pressurizing cool air toward the auxiliary duct 142 side. Further, the drive motor may include a temperature sensor 165.
Through 168, it is connected to the controller so as to be controlled according to the variation of the cooling load of each storage space, that is, the temperature change.

A method of controlling cold air in the refrigerator according to another preferred embodiment of the present invention as described above will be described. As shown in FIG. 8, from the blower chamber 130 to the damper 13
The cold air that has flowed into the No. 8 is the auxiliary duct 142 and the damper 1.
By being divided into two parts and flowing, the auxiliary duct 1
The cold air jet nozzles 171 to 174 of 42 also continuously jet cold air. At this time, the cool air flowing into the auxiliary duct 142 is discharged according to the opening / closing of the cool air injection nozzles 171 to 174. Basically, the direction of the cold air injection nozzle is determined by the door basket 16
It is preferable to face the 1 to 164 side. Here, the door baskets 161 to 164 are mounted above and below the door 150 at regular intervals.

If a load having a high temperature (for example, food) is stored and the cooling load of a specific storage space becomes high, the temperature sensor 165 provided in the storage space 165 is provided.
Through 168 the temperature is sensed and sent to the controller. In the controller, the driving motor is rotated by grasping the temperature change with respect to the specific storage space, and the driving motor is driven to rotate the cooling air injection nozzles 171 to 174 connected thereto, thereby discharging the cooling air. Will face a specific storage space. At this time, when the specific storage space becomes weakly cooled or a new load is stored, the cool air injection nozzles 171 to 174 are controlled by the controller so as to face the specific storage space. For example,
As shown in FIG. 9, when the temperature is weak or a new load is stored in the four-stage door basket 164, the controller controls the cool air injection nozzle so that the cool air injection nozzle faces forward and downward. Controls the nozzle rotation direction.

At this time, the degree of rotation of each cold air injection nozzle varies depending on the position of the cold air injection nozzle. That is, the cold air injection nozzle 174 provided so as to correspond to the four-stage door basket 164 is directed to the front, and the one-stage, two-stage, and three-stage door baskets 16 are provided.
The cold air injection nozzles 171 to 173 provided corresponding to Nos. 1 to 163 correspond to the four-stage door basket 164.
The cold air injection nozzle 174 provided to correspond to the above is rotated further forward and downward. As described above, since the cool air is pressurized to the auxiliary duct side by the auxiliary blower fan provided in the damper, the flow resistance of the cool air transferred to the auxiliary duct side is reduced, and the cool air injected from the cool air injection nozzle is cooled. The pressure of becomes stronger.

[0036]

As described above, according to one preferred embodiment of the present invention, the load newly stored is grasped by using the video equipment provided on the inner wall surface of the refrigerating compartment to cool the air in the load direction. By discharging, the temperature distribution in the refrigerator can be uniformly maintained through rapid cooling for the newly stored load, and the power consumption of the refrigerator can be greatly reduced. Therefore, by using the preferred embodiment of the present invention and the weight of the existing temperature sensor and the object, the newly stored load can be cooled more intensively, and the centralized cooling performance for the load can be improved. You can

Further, according to another preferred embodiment of the present invention, the temperature inside the refrigerating chamber is controlled by concentrating and discharging cool air into a specific storage space such as a door basket having a high ambient temperature using a temperature sensor. Can be maintained evenly, the user can visually confirm the mechanical operation at the time of centralized cooling, and the expectation for the performance of the refrigerator is increased, which is useful for improving the commercialability of the refrigerator. As described above, it is made clear that the present invention is not limited to the side-by-side refrigerator illustrated in the drawings, but can be applied to refrigerators of all types.

[Brief description of drawings]

FIG. 1 is a diagram showing a refrigerator according to a preferred embodiment of the present invention.

FIG. 2 is a view showing a rotary member in which a cool air discharge port is formed in FIG.

FIG. 3 is a view showing that cool air is discharged to a load position housed in a refrigerator according to a preferred embodiment of the present invention.

FIG. 4 is a view showing that cool air is discharged to a load position housed in a refrigerator according to a preferred embodiment of the present invention.

FIG. 5 is a view showing that cool air is discharged to a load position housed in a refrigerator according to a preferred embodiment of the present invention.

FIG. 6 is a diagram illustrating a method of controlling cold air in a refrigerator according to an exemplary embodiment of the present invention.

FIG. 7 is a view showing a refrigerator according to another preferred embodiment of the present invention.

FIG. 8 is a view showing an operating state of discharging cold air to the door basket in the refrigerator according to another preferred embodiment of the present invention.

FIG. 9 is a view showing an operating state of discharging cold air to the door basket in the refrigerator according to another preferred embodiment of the present invention.

FIG. 10 is a perspective view showing a structure of a general refrigerator.

FIG. 11 is a view showing a cold air circulation state by a conventional cold air distribution system.

[Explanation of symbols]

110 ... Video equipment 112 ... Rotating member 114 ... Driver case 116 ... Driver 118 ... Cold air outlet 128 ... load 142 ... Auxiliary duct 171 to 174 ... Cold air injection nozzle 165 to 168 ... Temperature sensor

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Choi Ji Ho             Republic of Korea, Seoul, Guncheon-gu, Ghasa             N-Don 327-23 (72) Inventor Cho Sung Ho             Republic of Korea, Seoul, Guncheon-gu, Ghasa             N-Don 327-23 (72) Inventor Lee Insop             South Korea, Seoul, Gaeung Chong, Ga             Sun-Don 327-23 (72) Inventor Sun Jae Young             South Korea, Seoul, Gaeung Chong, Ga             Sun-Don 327-23 (72) Inventor Nam Yong Suk             South Korea, Seoul, Gaeung Chong, Ga             Sun-Don 327-23 F term (reference) 3L045 AA04 BA01 DA02 EA01 NA19

Claims (23)

[Claims] 1. When a load is stored by opening and closing a door of a refrigerator, a video image generating means for capturing the load and generating a video image; and a video image and a load after the load is stored. Control means for controlling the driving body to rotate according to the correlation with the video image before being stored; and discharge means for discharging cool air in the load direction under the control of the control means. A cool air control device for a refrigerator, which is characterized in that 2. The cold air control device for a refrigerator according to claim 1, further comprising a sensing unit for sensing opening and closing of the door of the refrigerator and sending a sensing signal to the control unit. 3. The cold air control device for a refrigerator according to claim 1, wherein the video image before the load is stored is generated when a door of the refrigerator is arbitrarily opened and closed. 4. The cold air control device of the refrigerator according to claim 1, wherein the load is located in a space in which the load is stored. 5. The cold air control device for a refrigerator according to claim 1, wherein the correlation is a change in position and size of a load in a space in which the load is stored. 6. The cold air control device for a refrigerator according to claim 1, wherein the video image generating means captures an image of a space in which a load is stored every time the door of the refrigerator is closed. 7. The cool air control device for a refrigerator according to claim 1, wherein the driving body has a spherical shape, and the discharge means penetrates through the inside thereof. 8. The cool air control device for a refrigerator according to claim 7, wherein the driving body is attached to a wall surface inside the refrigerator, and is inserted into a driving body case having a spherical inner side. 9. The cool air control device for a refrigerator according to claim 1, wherein the degree of rotation of the driving body is different depending on the position and size of the load stored. 10. The cold air control device of the refrigerator according to claim 1, wherein the image forming means corresponds to the driving body in a one-to-one correspondence and is provided at predetermined positions. 11. When the load is stored by opening and closing the door of the refrigerator, the step of capturing the load to generate a video image; the video image after the load is stored and before the load is stored. A refrigerator controlled to rotate a driving body driven according to a correlation with a video image; and a step of discharging cool air toward the load under the control of the control means. Cold air control method. 12. The method of claim 11, wherein the video image is generated each time opening / closing of a door of the refrigerator is detected. 13. The method of claim 11, wherein the video image before the load is stored is generated by arbitrarily opening and closing a door of the refrigerator. 14. The method of claim 11, wherein the correlation is a change in the position and size of the load in the space in which the load is stored. 15. The cooling air control method for a refrigerator according to claim 14, wherein the degree of rotation of the driving body is different depending on the position and size of the load stored. 16. When an image pickup command for opening and closing the door of the refrigerator is transmitted from the control means to the video image generation means, the video image generation means picks up an image of a space in which a load is stored in response to the image pickup command, Sending the generated video image to the control means; and controlling the driver to rotate the driver according to changes in the video image so that cool air is discharged. How to control cold air in a refrigerator. 17. The method of claim 16, wherein the image capturing command is generated from the control unit based on a sensing signal sensed by opening and closing a door of the refrigerator. 18. The method according to claim 16, wherein the change of the video image is determined by the presence / absence of a load located in the space in which the load is stored. 19. The method as claimed in claim 18, wherein the position and the size of the load are grasped from the video image when the load is present in the space for storing the load. 20. An auxiliary duct connected to one side of a damper connected to the blower chamber, the auxiliary duct being provided in a partition wall between the freezing chamber and the refrigerating chamber; A cool air injection nozzle; a temperature sensor arranged on one side of each door basket to detect the temperature; and the cold air injection nozzle rotating according to the temperature change of the storage space of each door basket detected by the temperature sensor. And a controller for driving a drive motor, and a cool air control device for a refrigerator. 21. The cool air control device for a refrigerator according to claim 20, further comprising an auxiliary blower fan provided on one side of the damper so that the cool air is pressurized to the auxiliary duct side. 22. The cold air control device of the refrigerator according to claim 20, wherein the number of the cold air injection nozzles is provided so as to correspond to the storage space of the door basket. 23. The cool air control device for a refrigerator according to claim 20, wherein the controller controls the degree of rotation of each cool air injection nozzle to be different depending on the position of the storage space where the temperature change occurs. .